81872455

素因数分解:

$5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 114868224

約数和(自身を除く): 32995769

約数列:

[1, 5, 7, 35, 113, 127, 163, 565, 635, 791, 815, 889, 1141, 3955, 4445, 5705, 14351, 18419, 20701, 71755, 92095, 100457, 103505, 128933, 144907, 502285, 644665, 724535, 2339213, 11696065, 16374491, 81872455]

約数ペア:

[(1, 81872455), (5, 16374491), (7, 11696065), (35, 2339213), (113, 724535), (127, 644665), (163, 502285), (565, 144907), (635, 128933), (791, 103505), (815, 100457), (889, 92095), (1141, 71755), (3955, 20701), (4445, 18419), (5705, 14351)]